Footwear sole



FIG. 1 is a top perspective view of a footwear sole taken from a side;

FIG. 2 is a top perspective view taken from an opposite side thereof;

FIG. 3 is a bottom perspective view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a side view thereof;

FIG. 7 is an opposite side view thereof;

FIG. 8 is a front view thereof; and,

FIG. 9 is a rear view thereof.

The broken line showings in the figures are for the purpose of illustrating environment and/or boundaries only and form no part of the claimed design. 

CLAIM The ornamental design for a footwear sole, as shown and described. 